Design of High-Reliability Micro Safety and Arming Devices for a Small Caliber Projectile
Abstract
:1. Introduction
2. Design
3. Theoretical Analysis
4. Simulation Analysis
4.1. Performance Simulation
4.2. Multi-Physics Coupling Simulation
5. Experimental Analysis
6. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Material | Density (kg/m3) | Young’s Modulus (GPa) | Poisson’s Ratio | Yield Strength (GPa) |
---|---|---|---|---|
Beryllium bronze | 8.3 × 103 | 133 | 0.33 | 1.2 |
Nickel | 8.9 × 103 | 150 | 0.31 | 0.815 |
Load | Initial Motion Time (ms) | Arming Time (ms) | Arming Process Duration (ms) |
---|---|---|---|
Centrifugal force (25 °C) | 1.57 | 2.02 | 0.45 |
Centrifugal and setback force (25 °C) | 1.56 | 1.98 | 0.42 |
Centrifugal force (50 °C) | 1.58 | 2.01 | 0.43 |
Centrifugal force (−40 °C) | Arming failed | Arming failed | Arming failed |
Group Number | 1 | 2 | 3 | 4 |
---|---|---|---|---|
Rotary speed (rpm) | 36,000 | 37,000 | 35,000 | 36,000 |
Average (rpm) | 36,000 |
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Wang, D.; Lou, W.; Feng, Y.; Zhang, X. Design of High-Reliability Micro Safety and Arming Devices for a Small Caliber Projectile. Micromachines 2017, 8, 234. https://doi.org/10.3390/mi8080234
Wang D, Lou W, Feng Y, Zhang X. Design of High-Reliability Micro Safety and Arming Devices for a Small Caliber Projectile. Micromachines. 2017; 8(8):234. https://doi.org/10.3390/mi8080234
Chicago/Turabian StyleWang, Dakui, Wenzhong Lou, Yue Feng, and Xinzhao Zhang. 2017. "Design of High-Reliability Micro Safety and Arming Devices for a Small Caliber Projectile" Micromachines 8, no. 8: 234. https://doi.org/10.3390/mi8080234